P0172 on Volvo EX90: Fix & DLC Location
Factory diagnostic troubleshooting wire for fault code P0172 (System Too Rich (Bank 1) - Symptoms, Causes & Step-by-Step Fix) specifically on the Volvo EX90 (2024–2026, Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh)).
1. Symptoms of P0172 on Volvo EX90
When the Engine Control Module (ECM/PCM) on your Volvo EX90 (Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh)) logs fault code P0172, drivers commonly observe:
2. Most Likely Causes on Volvo EX90
Historical warranty claims and technical repair bulletins for Volvo EX90 point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Volvo EX90
Use dedicated MAF cleaner to remove carbon buildup from sensor wires. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Use live OBD-II scanner data; negative trims beyond -10% indicate the ECU is cutting fuel. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Perform a fuel pressure leak-down test to identify injectors leaking raw gasoline into cylinders while parked. on the Volvo EX90 equipped with Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh).
Other Common Fault Codes on Volvo EX90
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Volvo EX90:
4. Volvo EX90 P0172 FAQs
What causes code P0172 to trigger on a Volvo EX90?
On the Volvo EX90 (Twin Motor AWD EV (402HP / Performance 510HP / 111 kWh)), P0172 is most frequently caused by Faulty or leaking fuel injector or Contaminated Mass Air Flow (MAF) sensor.
Where is the OBD-II port located on my Volvo EX90?
On the Volvo EX90, the 16-pin DLC diagnostic connector is located Driver footwell lower OBD interface. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Volvo EX90 with code P0172?
Driveable short distances, but unburnt fuel can damage catalytic converters. Given that P0172 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.